Long-term assessment of a modified tunneling technique for root coverage in lower anterior gingival recession: a retrospective study.

IF 2.2 4区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE Journal of Periodontal and Implant Science Pub Date : 2024-10-21 DOI:10.5051/jpis.2402660133

Sungtae Kim, Hee-Seung Han, Hyunkyung Kim, Hyunjae Kim, Yang-Jo Seol, Young-Dan Cho

{"title":"Long-term assessment of a modified tunneling technique for root coverage in lower anterior gingival recession: a retrospective study.","authors":"Sungtae Kim, Hee-Seung Han, Hyunkyung Kim, Hyunjae Kim, Yang-Jo Seol, Young-Dan Cho","doi":"10.5051/jpis.2402660133","DOIUrl":null,"url":null,"abstract":"Purpose: Root coverage (RC) procedures require long-term evaluation. This study assessed the clinical validity and long-term stability of a modified tunneling technique for lower anterior gingival recession (GR) using a subepithelial connective tissue graft (SCTG) and a volume-stable collagen matrix.Methods: Across 39 patients, 66 mandibular incisors with ≥1.0 mm of GR were examined before and after RC surgery. Clinical photographs documenting the results of RC were taken at baseline (T₀) and the most recent follow-up visit (T₁). Impressions were obtained either at baseline (T₀) or 3 weeks later (T₃). The recession depth, Miller classification, and rates of RC and complete root coverage (CRC) were assessed.Results: This study analyzed 66 GR sites across 39 patients, with an average follow-up period of 41.3 months. Overall, the mean RC achieved was 86.2%±15.7%. Among single recessions, the RC was 85.2%±25.6% for Miller class I, 91.5%±10.4% for class II, and 79.2%±18.3% for class III. Regarding multiple recessions, the RC was 85.1%±16.2% for Miller class I, 87.0%±12.5% for class II, and 89.8%±16.0% for class III. By Miller classification, the RC was 85.1%±16.8% for class I, 88.7%±11.6% for class II, and 85.8%±17.3% for class III. Furthermore, the RC varied by follow-up duration: 72.5%±15.1% at 12 months, 90.1%±12.6% at 25-36 months, 89.0%±16.7% at 37-48 months, 91.10%±9.88% at 49-60 months, and 97.6±4.79% for longer than 61 months, with 77.8% of the last group achieving CRC. RC also differed based on the initial recession depth, at 88.0%±16.8% for 1-3 mm, 83.1%±14.1% for 3-6 mm, and 80.2%±5.04% for depths exceeding 6 mm.Conclusions: A modified tunneling technique, utilizing SCTG and a volume-stable collagen matrix, appears to represent a reliable option for the long-term management of GR in the lower anterior region, even in cases involving multiple Miller class III GRs.","PeriodicalId":48795,"journal":{"name":"Journal of Periodontal and Implant Science","volume":" ","pages":""},"PeriodicalIF":2.2000,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Periodontal and Implant Science","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.5051/jpis.2402660133","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}

引用次数: 0

Abstract

Purpose: Root coverage (RC) procedures require long-term evaluation. This study assessed the clinical validity and long-term stability of a modified tunneling technique for lower anterior gingival recession (GR) using a subepithelial connective tissue graft (SCTG) and a volume-stable collagen matrix.

Methods: Across 39 patients, 66 mandibular incisors with ≥1.0 mm of GR were examined before and after RC surgery. Clinical photographs documenting the results of RC were taken at baseline (T₀) and the most recent follow-up visit (T₁). Impressions were obtained either at baseline (T₀) or 3 weeks later (T₃). The recession depth, Miller classification, and rates of RC and complete root coverage (CRC) were assessed.

Results: This study analyzed 66 GR sites across 39 patients, with an average follow-up period of 41.3 months. Overall, the mean RC achieved was 86.2%±15.7%. Among single recessions, the RC was 85.2%±25.6% for Miller class I, 91.5%±10.4% for class II, and 79.2%±18.3% for class III. Regarding multiple recessions, the RC was 85.1%±16.2% for Miller class I, 87.0%±12.5% for class II, and 89.8%±16.0% for class III. By Miller classification, the RC was 85.1%±16.8% for class I, 88.7%±11.6% for class II, and 85.8%±17.3% for class III. Furthermore, the RC varied by follow-up duration: 72.5%±15.1% at 12 months, 90.1%±12.6% at 25-36 months, 89.0%±16.7% at 37-48 months, 91.10%±9.88% at 49-60 months, and 97.6±4.79% for longer than 61 months, with 77.8% of the last group achieving CRC. RC also differed based on the initial recession depth, at 88.0%±16.8% for 1-3 mm, 83.1%±14.1% for 3-6 mm, and 80.2%±5.04% for depths exceeding 6 mm.

Conclusions: A modified tunneling technique, utilizing SCTG and a volume-stable collagen matrix, appears to represent a reliable option for the long-term management of GR in the lower anterior region, even in cases involving multiple Miller class III GRs.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

目的：牙根覆盖（RC）手术需要长期评估。本研究评估了使用上皮下结缔组织移植物（SCTG）和体积稳定的胶原基质进行下前牙龈退缩（GR）的改良隧道技术的临床有效性和长期稳定性：对 39 名患者中 66 颗下颌切牙在 RC 手术前后的牙龈退缩≥1.0 毫米的情况进行了检查。在基线期（T₀）和最近的随访期（T₁）拍摄记录 RC 效果的临床照片。在基线（T₀）或 3 周后（T₃）获得印模。结果：本研究分析了 39 名患者的 66 个 GR 位点，平均随访时间为 41.3 个月。总体而言，平均 RC 为 86.2%±15.7%。在单次凹陷中，米勒 I 级的 RC 为 85.2%±25.6%，II 级为 91.5%±10.4%，III 级为 79.2%±18.3%。就多次凹陷而言，米勒 I 级的 RC 为 85.1%±16.2%，II 级为 87.0%±12.5%，III 级为 89.8%±16.0%。根据米勒分级，I级的RC为85.1%±16.8%，II级为88.7%±11.6%，III级为85.8%±17.3%。此外，RC 随随访时间的长短而变化：12个月为72.5%±15.1%，25-36个月为90.1%±12.6%，37-48个月为89.0%±16.7%，49-60个月为91.10%±9.88%，超过61个月为97.6%±4.79%，最后一组中有77.8%达到CRC。RC也因初始退缩深度而异，1-3毫米为88.0%±16.8%，3-6毫米为83.1%±14.1%，超过6毫米为80.2%±5.04%：利用 SCTG 和体积稳定的胶原基质的改良隧道技术似乎是长期治疗下前牙区 GR 的可靠选择，即使是涉及多个米勒 III 级 GR 的病例也是如此。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Journal of Periodontal and Implant Science DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

3.30

自引率

5.30%

发文量

期刊介绍： Journal of Periodontal & Implant Science (JPIS) is a peer-reviewed and open-access journal providing up-to-date information relevant to professionalism of periodontology and dental implantology. JPIS is dedicated to global and extensive publication which includes evidence-based original articles, and fundamental reviews in order to cover a variety of interests in the field of periodontal as well as implant science.